CALGARY, June 8, 2011 /PRNewswire/ – Trimac Transportation Ltd. (“Trimac“) (TSX: TMA) is pleased to announce the acquisition of Benson Tank
Lines’ (“Benson”) assets and business for $4.0 million. Benson Tank
Lines transports liquid chemicals primarily out of the greater
Vancouver area, Washington State and Alberta. The purchase includes
approximately 60 trailers and 35 power units and will be financed
through existing lines of credit.

“I would like to welcome Benson’s professional driving and
administration staff to Trimac,” said Ed Malysa, President and Chief
Operating Officer of Trimac. “Benson has been a well managed business
for over 40 years. This acquisition is consistent with Trimac’s
strategic objective to expand market share within its core product
lines. Benson’s customer base, employees and assets complement our
bulk chemical business in Western Canada.”

About Trimac: Trimac is Canada’s largest provider of bulk trucking
services with operations from coast to coast. In addition, through its
National Tank Services division, Trimac performs repairs, maintenance
and tank-trailer cleaning services for both the Trimac fleet and for
third party commercial customers. Trimac also provides third party
transportation logistics services in Canada and the United States
through its wholly owned subsidiary Bulk Plus Logistics.

SOURCE Trimac Transportation Ltd.